Type-writing machine.



Na 67l,l86. Patented Apr. 2, NHL

H. S. DUKES;

TYPE WRITING MACHINE.

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No. 67!,l86. Patented Apr. 2, l90l.

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TYPE WRITING MACHINE.

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No. 67!,186; Patented Apr. 2, Mil.

H. s, DUKES.

TYPE WRITING MACHINE.

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N0. 671,!86. Patented Apr; 2, I901. H. s. DUKES.

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H, S. DUKES TYPE WRITING MACHINE;

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TYPE WRITING MACHINE.

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H. S. DUKES.

TYPE WRITING MACHINE.

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. adjustments described, but also to provide HARRY S. DUKES, OF LITTLEROCK, ARKANSAS.

TYPE-WRiTING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 671,186, dated April 21901.

Application filed January 12, 1900v Serial No. 1.237- No model.) i

To this end the invention contemplates di-1 vers improvements upon thedifferent parts of the machine to renderthe same capable of easymanipulation, While at the same time providing for accurate work andperfectly visible writing. To attain these desired results, theinvention has several objects in view, one of which is to provide animproved construction of supporting-frame for the typecarriage, capableof vertical adjustment to allow for the thickness of the book or otherobject to be printed upon, as Well as horizontal adjustment to shift thezone of printing from onerpage of the book to the opposite.

page.

The present invention also makes provision for constructing thissupporting-frame in such a manner as not only to permit of the for thesupport of the track-rails for the typecarriage in such a manner thatthe same may be readily adjusted longitudinally of the frame to effectthe necessary line-spacing, while also admitting of the transversetravel of the type-carriage to effect the letter-spacing.

Another object of the invention is to associate with the track-carryingframe and the tracku'ails for the type-carriage a positive and reliableform of line-spacing mechanism controlled by an actuating or operatingdevice ou the type-carriage, whereby the linespacing mechanism is placedunder the immediate control of the operator.

The invention further contemplates an improved type-action includingnovel meansfor the mounting and adjustment of the typebars and thekey-operated connections therefor, whereby the greatest economy in spacewill be effected, while at the same time providing for the most positiveand direct action of the type. In carrying out this object the inventionalso has in view the provision of novel means for effecting the verticaladj ustment 0f the type-bars, whereby either upper or lower casecharacters can be printed, and also to provide, in connection with theshift mechanism for the type-bars, a new and useful form of reversingdevice, whereby the type-action may be set for normally printing eitherupper or lower case characters and the 7 same shift-key employed withthe type-action set in either of these positions.

A further object of the invention is to provide improved letter-spacingmechanism hav iug'a positive and reliable action to insure a uniformstep-by-step feed of the carriage, while at the same time permitting ofthe free return movement of the carriage and also the release thereofwithout the necessity of disengaging the dogs of the mechanism from thestar-wheel or the spacing-pinion from the rack-bar.

In connection with the letter-spaci 11g mechanism the inventioncontemplates simple and efficient means for actuating the same from thekeys of the keyboard and also to provide a universal motion transmittingelement, preferably in the form of a rock-shaft, for not onlytransmitting the movement of the keys of the keyboard to theline-spacing mechanism,but also to the ribbon-feed and. the ribhon-shiftdevices.

Another object of the invention is to provide a novel construction ofautomaticallyoperating line-stop, which prevents the piling up ofletters and also preven s the type from striking the right-hand guide ofthe main supporting-frame, while at the same time permitting of thecompletion of a word or the addition of a few extra letters if it shouldbe necessary to add the same to the line before returning the carriage.

With these and many other objects in view, which wiilmore readily appearas the nature of the invention is better understood, the same consistsin the novel construction, combination, and arrangement of partshereinafter more fully described, illustrated, and claimed.

The fundamental featu res of the invention are necessarily susceptibleto a wide range of modification as a whole without departing from thespirit or scope of the in vention; but track-slides, showing the fixedtrip-plate pref the preferred embodiment of the differentinstrumentalities is shown in the accompanying drawings, in which-Figure 1 is a perspective view of a typewriting machine constructed inaccordance with the present invention and showing the mainsupporting-frame swung upwardly to a position which permits of thepositioning and removal of the work, which, as illustrated, is in theform of an open book. Fig. 2 is a top plan view of the entire machine,which includes the main supporting-frame carrying cross-sectional viewof the carriage on the line the track-rails and the travelingtype-carriage mounted thereon. Fig. 3 is a longitudinal sectional viewthrough the type-carriage, showing one position of the shiftingmechanism for the type-action to normally hold the type-bars in positionfor printing lower-case characters. Fig. 4 is a similar view of thetype-carriage, showing the shifting mechanism set for holding thetype-bars in posit-ion for printing upper-case characters. Fig. 5 is alongitudinal sectional view of the type-carriage, the line of sectionincluding the letter-spacing mechanism and the view illustrating theline-lock in its normal unlocked position. Fig. 6 is a detail Viewshowing the line-lock in the locked position, which it automaticallyassumes at the end of the line. Fig. 7 is a plan view of the mainsupporting-frame carrying the trackrails for the type-carriage. Fig. Sisa longitudinal sectional view on the line 8 8 of Fig. 7, showing theslidable connection of the bear ing-block with the supporting-rod andalso illustratingmore' plainly the pivotal support of the frameon.s'aid, bearing-block. Fig. 9 is a bottom plan view of the entiretype-actio'n removed from the casing of the carriage. Fig. 10 is anenlarged detail view of a'portion of the hanger ring for the typebars,showing more plai'nl'y the mounting "of the type-bar hangers and therelative positioning of the type-bar bell-cranks. Fig. 11 is a detail inperspective of a pair of the type-bar hangers, showing the reverserelation thereof to permit of compact grouping and providing fora widebearing for the type-bars. Fig. 12 is a detail'sectional view on theline 12 12of Fig. 10, showing the adjusting device for the type-barhangers to provide for adjusting the bearings. Fig. 13 is a top planview of the type-carriage, with the type-action removed, exposing theoperating devices for the line- 'spaci'ng in echan ism an (i alsoexposing the connections for transmitting motion to the letterspacingmechanism, the ribbon-feed, and the ribbon-shifting devices. Fig. 14 isa bottom plan view of the carriage. Fig. 15'is adetail 15 15 of Fig. 13,illustrating more plainly the operating device for the line-spacingmechanism. Fig. 161s a detail in perspectiveofa portion of the operatingdevice onthe carriage for operating the line-spacing mechanism.

*Fig. 17 is a detail in perspective of one of the erably associatedtherewith. Fig. 18 is a detail sectional view showing the mounting ofthe line-spacing pawls. Fig. 19 is a detail sectional view of theletter-spacing mechanisnn, the line of section being taken on the line19 19 of Fig. 13. Fig. 20 is a vertical sectional view of theletter-spacing mechanism on the line 20 20 of Fig. 19, showing themechanism in the at-rest position. Fig. 21 is a view similar to Fig. 20,showing the spacing or feed dog disengaged from the star- .wheel. Fig.22 is a detail sectional view on the line 22 22 of Fig. 13, showing thereleaselever connection with theletter-spacing mechanism. Fig. 23 isadetail sectional view on the line 23 23 of Fig. 1, showing themountingof the spindle for the reversing-key of the type-bar-shiftingmechanism. Fig. 24 is a detail in perspective of the lock-lever forminga part of the line-stop device. Fig. 25 is a rear elevation of thecarriage, showing the mounting of the ribbon-spools, theactuatingp'aw'ls constituting a part of the ribbon-feed movement, andthe reversing mechanism for the ribbon-feed. Fig. 26 is a'simil'ar Viewshowing a different position of the same parts. Fig. 27 is a detail inperspective of the reciprocatory reversing-bar, constituting a part ofthe ribbon-feed-reversing mechanism. Figs. 28 and 29 are detail 'vie'wsillustrating the difiere'nt positions of portions'of therib'bon-feed-reve'rsin g mechanism to show the automatic a'ct-io'nthereof. Fig. 30 is a detail sectional view on the line 30.30of Fig. 29.Fig. 31 is a detail in perspective of one of the"actuati'ng-pawlsforming apart of the ribbon-feed movement. Figs. 32 and 33 aredetail'viewss'ho'wing more plainly the mounting of the pivotaltrip'latches on the ratchetdisks of the ribbon-spools. Fig. 34. is adetail in perspective of one of the trip-latches for the ribbon-spools.Fig. 35 is a skeleton perspective view of the type-action-supportingframe, the vertically-movable type-bar carrier, and the adjustingconnections for said type-bar carrier. Fig. 36 is a perspective Viewshowing the construction and arrangement of the swinging yoke-leverswhich are associated with the universal key-connection bar and themoti0n-transmitting 'rockshaft. Fig. 37' is a detail in perspective ofthe universal key-connection bar cooperating with the swingingyoke-levers and the motion-transmitting rock-shaft. Fig. 38 is a detailin perspective of the reversing device or mechanism for the ribbon-feed.Fig. 39 is a detail sectional view on the line m as of Fig. 7. Fig. 40isa similar view on the line y y of Fig. 7. Fig. 41 is a detailsectional view showing a portion of the line-lock device, the line ofsection being indicated by the line .22 in Fig. 6. Fig. 42 is a detailview showing a "modified arrangement of the keyboard. Fig. 4.3 is asectional view on the line 43 d3 of Fig. 42.

Like numerals of reference designate cor-

